...and breaks its gas tube, causing the house to fill up slowly with deadly natural gas...as you enter, your clothing rubs on itself causing friction building up static electricity, which sparks, igniting the gas and sending you into oblivion
You go to get breakfast, then some chick in a skin-tight yellow leather suit turns up. You grab the gun you hide in the cereal box and go to shoot her, but the girl in yellow throws a knife into your chest before you can manage
I wrap the Heaven-Hell portal into a toroidal loop so that you constantly cycle between them. The clerk-angels become exasperated and decide that its best to just delete you from existence entirely.